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    1. Valves for petroleum equipment

    (1) oil refining equipment. Most of the valves required for oil refining installations are pipeline valves, mainly including gate valves, globe valves, check valves, relief valves, ball valves, butterfly valves, and steam traps. Gate valves account for about 80% of the total number of valves (valves account for 3% to 5% of the total investment of the equipment).
    (2) chemical fiber device. Chemical fiber products mainly polyester, qinglun, vinylon three categories. The ball valve and the clip valve (the clip ball valve, the clip gate valve and the clip stop valve) required by the valve;
    (3) acrylics device. This device generally needs the valve of scale production, mainly for gate valve, globe valve, check valve, ball valve, trap valve, needle globe valve, cock valve, in which gate valve accounts for 75% of the total valve.
    (4) ammonia synthesis device. Due to the different process of ammonia synthesis and purification, the technical function of the valve is different. At present, the sea ammonia plant mainly needs gate valve, globe valve, check valve, steam valve, butterfly valve, ball valve, diaphragm valve, regulating valve, needle valve, safety valve, high temperature and low temperature valve.

    2. Application valve of hydropower station
    The construction of power station in China is developing towards large-scale development, so it is necessary to use large-diameter and high-pressure safety valve, pressure reducing valve, globe valve, gate valve, butterfly valve, emergency stop valve and flow control valve, spherical sealing meter stop valve.

    3. Metallurgical application valve
    The behavior of alumina in metallurgy industry mainly needs to use abrasive slurry valve (in flow type globe valve), adjust steam trap valve. Metal seal ball valve, butterfly valve, oxidizing ball valve, stop flash and four-way directional valve are mainly used in steelmaking industry.

    4. Marine application valve
    With the development of offshore oil fields, the number of valves for offshore development is increasing. Cut off ball valve, check valve and multi-way valve are required for offshore platform;

    5. Food and medicine application valve
    The industry mainly needs stainless steel ball valve, non - toxic plastic ball valve and butterfly valve. Among the above 10 types of valve products, the demand of general valve is more than that of instrument valve, needle valve, needle globe valve, gate valve, globe valve, check valve, ball valve and butterfly valve.

    6. Valves for rural and urban construction
    Urban construction system with the general use of low-pressure valve, the current environmental and energy - saving direction of development. The environment-friendly rubber plate valve, balance valve, middle line butterfly valve and metal seal butterfly valve are gradually replacing the low-pressure iron gate valve. Most of the valves for urban construction in the sea are balance valves, soft sealing gate valves, butterfly valves, etc.

    7. Rural and urban heating valves
    In urban heat generation system, a large number of metal sealing butterfly valves, horizontal balance valves and direct-buried ball valves are needed to solve the problem of longitudinal and transverse hydraulic imbalance of pipelines and achieve the purpose of energy saving and heat generation balance.

    8. Environmentally friendly valve
    In the Marine environmental protection system, the water supply system mainly needs middle line butterfly valve, soft seal gate valve, ball valve, exhaust valve (used to exclude the air in the pipeline). Soft sealing gate valve and butterfly valve are mainly used in sewage treatment system.

    9. Gas valve
    City gas accounts for 22% of the total natural market, with large valve usage and many types. Main needs ball valve, cock valve, pressure reducing valve, safety valve;

    10. Apply valve to pipeline
    The main long - distance pipeline is crude oil, finished product and natural pipeline. The valves used in this type of pipeline are forged steel three-way full size ball valve, sulfur resistant plate gate valve, safety valve and check valve.